21143011143300 has 72 divisors (see below), whose sum is σ = 61174260638400. Its totient is φ = 5638091905920.

The previous prime is 21143011143277. The next prime is 21143011143383. The reversal of 21143011143300 is 334111034112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58833561 + ... + 59191839.

Almost surely, 2^{21143011143300} is an apocalyptic number.

21143011143300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21143011143300 is an abundant number, since it is smaller than the sum of its proper divisors (40031249495100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21143011143300 is a wasteful number, since it uses less digits than its factorization.

21143011143300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555005 (or 554998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21143011143300 its reverse (334111034112), we get a palindrome (21477122177412).

The spelling of 21143011143300 in words is "twenty-one trillion, one hundred forty-three billion, eleven million, one hundred forty-three thousand, three hundred".